[andrewcooke]

if i were the candidate, i think i'd prefer this. it saves my time and it sounds like you are reasonably courteous and give some kind of feedback, which is more than i would get otherwise.

in the past, when i've been the interviewer, i've "kept going to the end". i've not interviewed people recently, but if that changes in the future i will try this approach.

(vaguely related - thinking back, at least twice, as the candidate, i've volunteered myself as not suitable for the job. one resulted in an early exit; the other limped awkwardly on.)